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Structure supporting distribution cable of document reading apparatus

a technology for supporting distribution cables and document reading devices, which is applied in the direction of supporting structure mounting, electrical apparatus, pictoral communication, etc., can solve the problems of blurred document image, inability to read document images smoothly, etc., and achieve the restriction of repulsive stress, restricted repulsive stress, and restricted effect of distribution cabl

Active Publication Date: 2008-08-21
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a structure for supporting a distribution cable of a document reading apparatus by using a support member that leads out the cable from an optical scanning unit. The support member includes a regulating member that regulates the inclination of the cable with respect to the document reading direction, allowing it to be parallel to the document reading direction. This structure prevents bending of the cable that could cause unexpected contact with the drive wire and ensures stable support of the cable in a horizontal state. Additionally, the invention includes a twisting mechanism that twists the cable to be rotated for 90 degrees between the pass-through opening and the lead-out opening, which prevents the cable from being affected by any repulsive stress and allows it to be led out straight along the document reading direction.

Problems solved by technology

In addition, it has been also possible that the optical scanning unit 600 does not operate smoothly due to a frictional force produced between the distribution cable 650 and the drive wire 520 so that the read document image becomes blurred.

Method used

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  • Structure supporting distribution cable of document reading apparatus
  • Structure supporting distribution cable of document reading apparatus
  • Structure supporting distribution cable of document reading apparatus

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Embodiment Construction

[0034]Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0035]Overall Description of the Document Reading Apparatus

[0036]FIG. 1 shows the entire appearance of a document reading apparatus 2 according to the present embodiment. Also, FIG. 2 is a schematic cross-sectional view of the document reading apparatus 2 shown in FIG. 1.

[0037]On top of the document reading apparatus 2 of the present embodiment, an automatic document feeder (ADF) 4 is provided that automatically transports a document along a document transport path.

[0038]The document reading apparatus 2 includes a document placement table 31 arranged in the top face of a frame 35 that forms an outer frame, a first scanning unit 21, a second scanning unit 22 and an imaging lens 16, image sensing device (CCD) 14, and a drive circuit board 33.

[0039]The first scanning unit 21 includes a light source lamp 13, a first mirror 17a and the like. The light source lam...

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Abstract

An embodiment of the present invention involves a document reading apparatus that includes an optical scanning unit that moves back and forth in a document reading direction so as to read information of a document placed on a document placement table arranged in a top face of a frame by irradiating the document with light emitted from a light source lamp, and a distribution cable connected to the light source lamp. The optical scanning unit includes a support member that leads out and supports the distribution cable connected to the light source lamp in the document reading direction, and the support member includes a regulating member that regulates inclination of the lead-out distribution cable with respect to the document reading direction to support the distribution cable so as to be substantially parallel to the document reading direction.

Description

BACKGROUND OF THE INVENTION[0001]This application claims priority under 35 U.S.C. §119(a) on Japanese Patent Application No. 2007-039797 filed in Japan on Feb. 20, 2007, the entire contents of which are hereby incorporated by reference.[0002]The present invention relates to a document reading apparatus provided with an optical scanning unit that moves back and forth in a document reading direction so as to read information of a document placed on a document placement table arranged in a top face of a frame by irradiating the document with light emitted from a light source lamp, and a distribution cable connected to the light source lamp, and in particular, to a structure supporting the distribution cable.[0003]As schematically shown in FIG. 14, a conventional document reading apparatus is provided with an optical scanning unit 600 that moves back and forth in a document reading direction (hereinafter also referred to as a “sub-scanning direction”) X so as to read information of a do...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H05K7/14
CPCH04N1/1026H04N1/1013
Inventor OKADA, TOMOHIKOSUTO, YASUHIROYOSHIMOTO, MITSUHARUTANAKA, KENJI
Owner SHARP KK
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